SSIS-247 I gave her a month's grace period, but she fell in love with another man, so I cuckolded my best friend's boyfriend, who I've loved for a long time, to the bone. - Izuna Maki

This is a story about my best friend stealing my boyfriend. - My best friend Nagi has a boyfriend named Taichi, but she is obsessed with a different man. - She was in love with Taichi, but she withdrew because she wanted him to be her best friend, but when she saw Taichi's lonely face, she couldn't help but say, ``Why don't you just break up and go out with me?'' - When I heard that I would be going on a trip with my senior in a month, I gave him a break. - If we want to get back together, I'm willing to give up... But Nagi leaves Taichi behind and goes on a trip. - That's why I decided to steal Taichi, heart and soul.